The book explores the unsolved murders of eight prostitutes found in Louisiana's Jefferson Davis Parish. Author Ethan Brown writes multiple sources identified Boustany as a client of several of the murdered prostitutes.

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The book also claims Martin Guillory, a staffer for Boustany, used to run one of the hotels used by the sex workers. Guillory told the author he'd met a couple of the slain women before, but he didn't know there was any illegal activity taking place inside his hotel.

Boustany is running to replace outgoing Republican Senator David Vitter. And Boustany is currently in third place in that race, trailing Louisiana's Republican Treasurer John Kennedy and Democratic state politician Foster Campbell.

Kennedy's campaign issued a very specific denial that it had anything to do with the allegations. The statement reads, in part: "I want to be very clear that my campaign played absolutely no role in creating this story alleging Congressman Boustany's sexual relationships with prostitutes that were later murdered, his staff's alleged involvement in running the bar and hotel where this illicit behavior took place or publishing the book 'Murder in the Bayou' written by Ethan Brown and published by Simon and Schuster."